People Are Animals, Too

Tommy the chimpanzee got his day in court on October 8, 2014. He was unable to attend the hearing in 'person' – spending the day, like any other, in a cage in Gloversville, New York. But in an Albany courtroom, Steven Wise of the Nonhuman Rights Project argued that Tommy should be considered a person under New York… » 2/14/15 9:05am 2/14/15 9:05am

The Science of What Makes an Introvert and an Extrovert

Do you like to make small talk? Do you prefer one-to-one conversations or group activities? These questions and many others often show up in personality quizzes to reveal how introverted or extroverted you are, but what does that really mean? Here's what science tells us about extroversion and introversion. » 9/10/13 11:31am 9/10/13 11:31am

The Mystery of How Identical Twins Develop Different Personalities

Despite having the same genetic makeup, identical twins have their own distinctive personalities. Just how their individuality emerges has remained a bit of a mystery. But now, researchers have found that life experiences affect brain development — and this may help us understand how personalities form. » 5/09/13 11:11am 5/09/13 11:11am